Download or read book GB T 3639 2009 Translated English of Chinese Standard GBT 3639 2009 GB T3639 2009 GBT3639 2009 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2015-08-02 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies classification, code, dimension, shape, weight, permissible deviations, technical requirements, test methods, inspection rules, packaging, marking, and quality certificate of cold-drawn or cold-rolled precision seamless steel tubes.